
Yealink SIP-T73U Business Gigabit IP Phone, 2.3 inches Display (320 x 240 pixels), 12 SIP Accounts, Dual-port Gigabit Ethernet (10/100/1000 Mbps), PoE, Wi-Fi.
Yealink SIP-T73U Business Gigabit IP Phone featuring a 2.3-inch display, 12 VoIP accounts, Optima HD voice, and Dual-port Gigabit Ethernet (10/100/1000 Mbps) for enterprise communication.
Product Overview
The T73U IP phone is an all-in-one business phone that enables excellent voice communications and extended functions. Equipped with Hall switch technology, the T73U provides you with a quieter office environment. The redesigned appearance of Yealink's new T73U makes the phone more fashionable, thinner, and more in line with modern aesthetic standards. The T73U supports 12 SIP account registrations and is equipped with a 2.8-inch color display, backlight, and an EXP55 expansion station. Combined with Yealink 's ultra-high-definition voice technology, the T73U provides excellent audio quality and clear voice communications. When making calls, the phone responds faster and more responsively. In addition, a built-in USB port realizes the functions of a USB headset and USB recording, and you can choose freely according to your needs. The T73U adopts a TEE hardware encryption solution, providing you with a more secure storage experience. At the same time, it improves the phone's performance, bringing you more flexible interoperability and a better collaboration experience. The T7X series better builds the Yealink ecosystem and is compatible with more Yealink headsets. The phone supports configuring and upgrading headsets through LCD and supports Yealink headsets with a wearing detection function for intelligent channel switching. Engineered for modern desktop communication, the SIP-T73U combines Yealink's renowned acoustic engineering with high-reliability enterprise telephony. Equipped with 12 VoIP accounts, a responsive 2.3-inch 320 x 240 color lcd with backlight, and Optima HD audio, it ensures clear, distraction-free voice transmission. With integrated dual-band Wi-Fi, built-in Bluetooth, and dual Gigabit Ethernet ports with PoE, the SIP-T73U delivers exceptional productivity and seamless deployment across enterprise PBX and unified communications platforms.
Why Buy This Product
Gigabit Network Performance
Dual Gigabit Ethernet ports provide high-speed PC passthrough while powering the phone via standard PoE.
2.8" Color Screen
Sharp color LCD displays caller information, directory contacts, and line statuses with clear readability.
Dual USB Port Versatility
Supports adding optional Wi-Fi dongles, Bluetooth adapters, USB headsets, or call recording drives.
Smart Noise Suppression
Digital signal processing filters out ambient office noise for crisp, natural conversations.
Best for These Applications
Standard Enterprise Cubicles
Cost-effective, modern color desk phones for general office workers connected to Gigabit network switches.
Customer Service Desks
Agents handling moderate call volumes who need clear screen status and USB headset connectivity.
Classroom & Faculty Desks
Educational staff requiring dependable, multi-line VoIP phones with Gigabit computer passthrough.
Healthcare Nursing Stations
Compact workstations requiring clean, reliable phone communications without excess desk clutter.
Key Advantages
- 6 SIP VoIP Accounts:Handles multiple lines and shared call appearances smoothly.
- Optima HD Acoustic Clarity:Wideband audio codecs and full-duplex speakerphone deliver natural conversational speech.
- Standard PoE Powering:Operates over IEEE 802.3af PoE, eliminating power cords at wired network drops.
- Effortless Autoprovisioning:Deploys automatically with major VoIP providers and PBX systems via Yealink RPS.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 1.11 |
| Shipping Weight | 1.23 |
| Sip Lines | 12 |
| Sip Accounts | 12 |
| Display Type | 2.3-inch 320 x 240 Color LCD with Backlight |
| Display Resolution | 320 x 240 pixels |
| Screen Size | 2.3 inches |
| Ethernet Ports | Dual-port Gigabit Ethernet (10/100/1000 Mbps) |
| Network Speed | 10/100/1000 Mbps Gigabit |
| Speakerphone | Full-Duplex Hands-Free Speakerphone with AEC |
| Headset Port | RJ9 Headset Port with EHS Support |
| Codec Support | G.722, AMR-WB, AMR-NB, G.711a/u, G.729AB, G.729A, G.729, G.726, iLBC, G.723.1 |
| Audio Conferencing | 5-way Local Audio Conferencing |
| Phonebook Capacity | 1000 Entries |
| Call History Records | 100 Records |
| Protocols | SIP v1 (RFC 2543), v2 (RFC 3261), IPv4/IPv6, TCP/IP/UDP, DHCP, DNS-SRV, SNTP, STUN |
| Security Protocols | SRTP, TLS 1.2 / TLS 1.3, HTTPS, 802.1x, OpenVPN, WPA2/WPA3, AES256 Encrypted Config |
| Power Supply | PoE (IEEE 802.3af Class 2) or Optional External 5V/2A DC Adapter |
| Mounting Type | Multi-Angle Desktop Stand / Wall-Mountable |
| Dimensions | 209.0 mm*167.5 mm*214.8 mm*53.4 mm |
| Poe | Yes |
| Poe Class | IEEE 802.3af Class 2 |
| Gigabit Ports | Yes |
| Wifi | Yes |
| Wifi Frequency | Dual-Band 2.4GHz & 5.0GHz (802.11a/b/g/n/ac) |
| Usb Ports | 1 x USB 2.0 Type-A Port |
| Usb Headset Supported | Yes |
| Dss Keys | 40 |
| Acoustic Shield | Yes |
| Smart Noise Filtering | Yes |
| Hearing Aid Compatible | Yes |
| Operating System | Linux Embedded |
| Expansion Module Supported | Yes |
| Max Expansion Modules | 3 |
| Expansion Module Model | EXP55 |
| Hd Voice | Yes |
| Wall Mountable | Yes |
| Stock | 9 |
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